England’s largest festival of history and culture celebrates its 25th anniversary with thousands of free events taking place across ten days. Visitors will have the opportunity to explore places not normally open to the public and learn more about the heritage on their doorstep. During the annual festival, doors are flung open at some of the country’s best-known attractions, as well as private and community spaces ranging from country houses to museum archives, theatres, churches and wildlife reserves. Until September 22.